Siberian Radioheliograph: First Results
arXiv:1704.07100 · doi:10.12737/article_58f96ec60fec52.86165286
Abstract
Regular observations of active processes in the solar atmosphere have been started using the first stage of the multiwave Siberian Radioheliograph (SRH), a T-shaped 48-antenna array with a 4-8 GHz operating frequency range and a 10 MHz instantaneous receiving band. Antennas are mounted on the central antenna posts of the Siberian Solar Radio Telescope. The maximum baseline is 107.4 m, and the angular resolution is up to 70". We present examples of observations of the solar disk at different frequencies, "negative" bursts, and solar flares. The sensitivity to compact sources reaches 0.01 solar flux units ( of the total solar flux) with an accumulation time of about 0.3 s. The high sensitivity of SRH enables monitoring of solar activity and allows studying active processes from characteristics of their microwave emission, including faint events, which could not be detected previously.
arXiv comment14 pages, 12 figures
References in corpus (8)
- A Cold Flare With Delayed Heating
- Imaging of the solar atmosphere by the Siberian Solar Radio Telescope at 5.7 GHz with an enhanced dynamic range
- Microwave and EUV Observations of an Erupting Filament and Associated Flare and CME
- Coronal Magnetography of a Simulated Solar Active Region from Microwave Imaging Spectropolarimetry
- The 26 December 2001 Solar Eruptive Event Responsible for GLE63. II. Multi-Loop Structure of Microwave Sources in a Major Long-Duration flare
- 3D Structure of Microwave Sources from Solar Rotation Stereoscopy vs Magnetic Extrapolations
- Microwave Negative Bursts as Indications of Reconnection between Eruptive Filaments and Large-Scale Coronal Magnetic Environment
- Correlation plots of the Siberian radioheliograph